Renamed GeodesicPlot.m

Now called GeodesicPlotWithStep.
Split GeodesicPlotWithStep.m

Split into two functions:
GeosOnly.m - Plots only the geodesics on the raw data.
GeosWithStepFunc.m - Plots the geodesics along with the zoomed in plot
and the step functions.
New GeodesicPlot.m

Script that does the plotting for the user.  It is a switch that selects
which plotting function to run based on user input.
Deleted GeodesicPlotWithStep.m